Bulkhead door



14,1930? J. L. HYLAND 1,743,673

- BULKHEAD DodR Original Filed June 18 2 Patented Jan. 14, 1930 seminartrio-E JOHN L. HYLAND, OF NEW YORK, N. Y.

BULKHEAD noon Refil'e of abandoned application Serial-N0.158,124,'fi1ei1recember v28, 192s, and Serial no. 390,003, med June i18,1920, respectively. This application-filed'November"26,f1928. Serial No.322,282. x

This invention relates to certain new and useful improvements in doorsand primarily to bulkhead doors and also building doors.

An object is to provide a bulkhead door which will be always watertight,airtight and fireproof and which will serve effectively as a forceddraft door.

A further object is to provide a vertically swinging bulkhead door bywhich coal, ashes,

and the like may be transferred from one compartment to another throughthe intervening bulkhead and yet always maintain a fireproof andwater-tight partition therebetween.

The invention still further resides in a door for the purpose ofventilation, the same being applicable to bulkheads or buildings.

In the drawings Fig. 1 is a fragmentary elevation of the 2 bulkheadequipped with my improved door,

Fig. 2 is a horizontal section therethrough showing both doors fullyclosed;

Fig. 3 is a similar View showing the doors closed within their framesbut spaced apart to permit ventilation of the compartments; Fig. 4 is alike view showing one door fully closed and the companion door fullyopened 1 to permit the entrance or exit of seamen;

Figs. 5 and 6 are vertical sections through zontal pivots, and I Fig. 71s a sectional view showing the mvention as applied to doors ofbuildings and dwellings.

Referring more in detail to the drawings, the bulkhead 1 is providedwith a doorway 2 on the opposite sides of which are arranged watertightframes, each comprising a top tively, of the watertight frames. Thedoors are flexibly connected by the cross chains 8, each being connectedat one end to the inner fie portion of one door and at its opposite endbulkhead doors mounted to swing 'on horito the =oute'r portion of thecompanion door, whereby when onedoo'riis pulled open the other door willbe pulled (ilosed'against'jthe fj or seats "'9 which may be providedwith suitablefacingto effect a watertight, airtight and fireproof =joiiit. "With both doors fully closed or seated, a'sflin Fig; 2, they'areairtight, wh'ere'as in Fig-3 they-are separated but stilldisposed-within their respective frames to provide ventilation "from'one window 5 through the other window "on the opposite sideof t-hebulkhead. 'T oenter'between the doors the farther door willautomatically close when the nearer is gpiilled open, as in ig i Figs;5*ai1tl6 'disclosebu'lkhead doors 10 mounted to swing on horizontalpivots '11 within frames 12ha-Ving segmental endwalls and arcuate top"walls. On ,one side of'the bulkhead is disposed a bracket 13 forsupportlng the ad acentdoor'at an upward inch- 0 nation'whereby.'coalmay'be 'clepositedzthereon antleasily swung to vertical position.

:Whereforced-draft .is used, "the doors prevent?'bac-k* file which:accidentally'occursrwhen the ordinary door is left opened. Ventilationmay be readily obtained :by separating the doors within their framesfrom which position the 'doors will automatically close when fluid orliquid pressure acts 'e'xteriorly thereof.- "When fully closed, it willbe noted that the doors are located between the windows to closecommunication tlierebetween. The same principle is applied to :doors ofdwellings and other builtlings, as ez remp'lified nfF-ig; 7 wh-ereinspecial "j anib20 is designed "to have the door21to interlock therewithat one or nro're points to permit more or ljless ventilation through theopening 22. The interlocking engagement is such that fluid ressure may:act thereonto move it't'o fully losed;position. v

In'construetionswhere the ventilating windows artr'omittedthe doorsarealwa s airtight. Thus,"as=tlep icted in Fig. 3, the doors may beseparated "and still provide an{airtighLWatertiglitantl.fireproofclosure as Well as gwhentheadoorsarefully closed.

end pf -the frame may "be cone netted directly-theaters, asin F-igst andbulkhead closure comprising a pair of doors hinged on opposite sides ofabulkhead, chains connecting the doors whereby opening one door willclose the other, and watertight frames housing the free edges of thedoors,- said frames provided with ventilating openings on opposite sidesof the bulkhead and said doors adapted to separate within their framestoinclude the ventilating openings.

2. A door frame having a Ventilating opening, and a door mounted in theframe to be secured on either side of the opening to either open orclose ventilation.

3. An airtight, watertight and fireproof bulkhead closure including incombination witha bulkhead having an opening, a pair of doors hinged atone side on opposite sides of the opening, frames on opposite sides ofthe opening projectingoutwardly from the bulkhead and each composed of atop wall and an arcuate side wall, the arcuate side walls being formedto have watertight engagement with the opposite free sides of the doors,and meansconnecting the doors whereby opening of one door will close theother.

4:. An airtight, watertight and fireproof bulkhead closure including incombination 7 with a bulkhead having an opening, a pair of doors hingedat one side on opposite sides of the opening, frames on opposite sidesof the opening pro ecting outwardly from the bulkhead and housing theopposite free sides of the doors, said frames having ventilating.

openings on opposite sides of the bulkhead, the doors being movable tolie outwardly beyond said ventilating openings, and means to connect thedoors whereby opening of one door will close the other.

opening projecting outwardly from the bulkhead and formed to engage theopposite free sides ofv the doors, and means whereby opening of one doorwill close the other.

6. An airtight, watertight and fireproof bulkhead closure including incombination with a bulkhead having an opening, a pair of head and havingarcuate portions formed to engage the opposite free sides of the doors,and means whereby opening of one door will close the other.

7. In combination with a bulkhead having a doorway, a pair of doorshinged at one side to swing on the respective opposite sides of thebulkhead, a watertight frame, for each door having an arcuate portion toengage the opposite free side of the doors, said arcuate portionsextending outwardly from opposite sides of the bulkhead, and meanswhereby opening of one door will close the other.

In testimony whereof I'afiix my signature.

JOHN L. HYLAND.

doors hinged at one side on opposite sides of i the opening, frames onopposite sides of the opening projecting outwardly from the bulk-

